The reason I wanted to talk about building rhythm in your golf swing is the fact that rhythm should be the only thing in your head as you're getting ready to make your shot. There are some fairly obvious pros to having a good rhythm like:
A good rhythm will help eliminate tension
A good rhythm builds consistency
A good rhythm will help build confidence
Before we can eliminate tension we need to know exactly how much we have in our swing. For this reason we’re going to do the tension drill. Take your setup position (no ball) and slowly start flexing every muscle in your body. That’s a 10 on the tension scale.
Then go the other direction. Get so loose you can barely stand up. That’s a 0 on the tension scale.
Go back and forth two or three times then try to hit your shot from a 2 or 3 on that tensions scale. You will immediately start to feel more smooth throughout your golf swing. Here's Iain himself with an example:
If you’re nice and loose through your big muscles but are still holding on too tightly to the club try taking (very) small swings with just the last three fingers of your left hand on the club (for righties). This will show you what it should feel like to effortlessly release the club through impact.
Learn to develop your own rhythm by humming while your swing. If you can keep the pitch of the hum consistent throughout (with a little spike at impact) you will find you rhythm in no time!
The last little tip I have is to keep your mouth open while you swing. People tend to bite down when they hit AT the ball rather than smoothly swinging through it. So by keeping your mouth slightly open you can give yourself that extra little edge.